Fix a few typos found while reading the code. (#1318)

Author: randruc

examples/OpenAIExamples/WebRTCOpenAI/Program.cs

@@ -9,7 +9,7 @@
 // demo so if not provided by the OS then ChatGPT will end up talking to itself.
 //
 // NOTE: As of 24 Dec 2024 the official OpenAI dotnet SDK is missing the realtime
-// models that represent the JSON datachannel messages. As such some ruidimentary
+// models that represent the JSON datachannel messages. As such some rudimentary
 // models have been created.
 // The official SDK is available at https://github.com/openai/openai-dotnet.
 // The OpenAI API realtime server events reference is available at
@@ -22,7 +22,7 @@
 // If you don't want to pass your OpenAI API key to this app an alternative approach is
 // to create an ephemeral secret using the curl comamnd below and then hard code it into
 // the application.
-// NOTE each epehmeral key seems like it can ONLY be used once:
+// NOTE each ephemeral key seems like it can ONLY be used once:
 // curl -v https://api.openai.com/v1/realtime/sessions ^
 //  --header "Authorization: Bearer %OPENAI_TOKEN%" ^
 //  --header "Content-Type: application/json" ^

src/app/Media/Codecs/AudioEncoder.cs

@@ -70,7 +70,7 @@ public List<AudioFormat> SupportedFormats
         /// </summary>
         /// <param name="includeLinearFormats">If set to true the linear audio formats will be added
         /// to the list of supported formats. The reason they are only included if explicitly requested
-        /// is they are not very popular for other VoIP systems and thereofre needlessly pollute the SDP.</param>
+        /// is they are not very popular for other VoIP systems and therefore needlessly pollute the SDP.</param>
         public AudioEncoder(bool includeLinearFormats = false, bool includeOpus = false)
         {
             if (includeLinearFormats)

src/sys/TypeExtensions.cs

@@ -51,7 +51,7 @@ public static class TypeExtensions
         private static readonly char[] hexmap = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
 
         /// <summary>    
-        /// Gets a value that indicates whether or not the collection is empty.    
+        /// Gets a value that indicates whether or not the string is empty.    
         /// </summary>    
         public static bool IsNullOrBlank(this string s)
         {